Understanding fragility in supercooled Lennard-Jones mixtures. I. Locally preferred structures

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dc.creatorCoslovich, D.
dc.creatorPastore, G.
dc.date2007-05-04
dc.date2007-10-02
dc.date.accessioned2026-07-07T08:33:01Z
dc.date.available2026-07-07T08:33:01Z
dc.descriptionWe reveal the existence of systematic variations of isobaric fragility in different supercooled Lennard-Jones binary mixtures by performing molecular dynamics simulations. The connection between fragility and local structures in the bulk is analyzed by means of a Voronoi construction. We find that clusters of particles belonging to locally preferred structures form slow, long-lived domains, whose spatial extension increases by decreasing temperature. As a general rule, a more rapid growth, upon supercooling, of such domains is associated to a more pronounced super-Arrhenius behavior, hence to a larger fragility.
dc.description14 pages, 14 figures, minor revisions, one figure added
dc.identifierhttps://arxiv.org/abs/0705.0626
dc.identifierhttp://arxiv.org/abs/0705.0626
dc.identifierJ. Chem. Phys. 127, 124504 (2007)
dc.identifierdoi:10.1063/1.2773716
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/138982
dc.subjectStatistical Mechanics
dc.subjectSoft Condensed Matter
dc.titleUnderstanding fragility in supercooled Lennard-Jones mixtures. I. Locally preferred structures
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